Once you have generated the power estimation report using
report_power, Xilinx recommends the following:
- Examine the total power in the Summary section. Does the total power and junction temperature fit into your thermal and power budget?
- If the results are substantially over budget, review the power summary distribution by block type and by the power rails. This provides an idea of the highest power consuming blocks.
- Review the Hierarchy section. The breakdown by hierarchy provides a good idea of
the highest power consuming module. You can drill down into a specific module to
determine the functionality of the block. You can also cross-probe in the GUI to
determine how specific sections of the module have been coded, and whether there are
power efficient ways to recode it.Note: If the design has a timing margin, conduct multiple runs to evaluate if any of the runs have a better total power. For example, a design that has 2 ps of margin can perform similarly to a design with 15 ps, but the 2 ps design might have lower power.